Spool 4 Litre Barra XR6T Short Engine - 103mm Stroker Billet Crank

Spool 4 Litre Barra XR6T Short Engine with Custom CP Extreme Boost Pistons, Upgraded 9310 pins, 102mm Stroker Billet Crank, Drag Pro I Beam Con Rods

Precisely Machined, Blueprinted and Assembled

All machining, assembly, and blueprinting performed by our preferred Engine shop

(Note: An exchange block is required with any Spool Short Engine purchase. We may require your block for the build if we don't have or can't Source a block at the time)

From $14000

Machining and blueprinting:

• Dismantle XR6 block
• Hot tank and wash XR6 block
• Torque plate bore and hone block
• Supply and remove/fit welsch plugs
• Grind crank if required
• Check tunnel and hone if required
• Mount and measure crank main journals
• Mount and measure crank big end journals
• Mount and measure crank in block with rods fitted
• Check conrod small ends / piston pins and clearance
• Check piston to bore clearance
• Balance assembly
• Install No#1and 6 rod and pistons – check deck alignment
• Deck / machine block
• Clean and inspect
• Measure and set bearing clearances
• Measure piston to bore clearances
• Set ring gaps
• Assemble short engine assembly – 6 cyl

Parts Supplied:

• Supply and install Spool Billet 103mm Stroker Crank
• Supply and install CP Custom Extreme Boost Pistons with upgraded 9310 pins
• Supply and install SPOOL XR6 Drag Pro I Beams conrods with 7/16 ARP2000 (upgraded L19 bolts optional at additional cost)
• Supply and install ACL race series main bearings
• Supply and install ACL race series big end bearings
• Supply and install ARP main studs
• Supply and install SPOOL Main girdle